package gdm3 3.28.2-0ubuntu1.2 failed to install/upgrade: installed gdm3 package post-installation script subprocess returned error exit status 127

[golomb]

no more comment

ProblemType: Package
DistroRelease: Ubuntu 18.04
Package: gdm3 3.28.2-0ubuntu1.2
ProcVersionSignature: Ubuntu 4.15.0-22.24-generic 4.15.17
Uname: Linux 4.15.0-22-generic x86_64
ApportVersion: 2.20.9-0ubuntu7.2
Architecture: amd64
Date: Thu Jun 14 10:37:54 2018
ErrorMessage: installed gdm3 package post-installation script subprocess returned error exit status 127
InstallationDate: Installed on 2018-05-29 (16 days ago)
InstallationMedia: Ubuntu 18.04 LTS "Bionic Beaver" - Release amd64 (20180426)
Python3Details: /usr/bin/python3.6, Python 3.6.5, python3-minimal, 3.6.5-3
PythonDetails: /usr/bin/python2.7, Python 2.7.15rc1, python-minimal, 2.7.15~rc1-1
RelatedPackageVersions:
 dpkg 1.19.0.5ubuntu2
 apt 1.6.1
SourcePackage: gdm3
Title: package gdm3 3.28.2-0ubuntu1.2 failed to install/upgrade: installed gdm3 package post-installation script subprocess returned error exit status 127
UpgradeStatus: No upgrade log present (probably fresh install)
modified.conffile..etc.gdm3.custom.conf: [modified]
mtime.conffile..etc.gdm3.custom.conf: 2018-05-29T07:41:49.115219

[golomb (laroudrac)]

no more comment

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.